Notion vs Obsidian: the honest comparison
The short answer
Edition v2026.Q3 · pricing and status verified 2026-08-06.
Choose Notion for teams that want the company brain, the AI that answers from it, and the agents that maintain it in one workspace. Choose Obsidian for founders and engineering-heavy teams who want knowledge as plain local files that any coding agent can read, grep, and edit — no API, no vendor.
On the elems table, Notion holds seat #1 of the Knowledge Wiki element and Obsidian holds #2 — this is the closest call in the category, and the honest answer depends on which trade-off you can live with.
The case for each
1NotionNotion Labs
Free · Plus $10/seat/mo · Business $20 (full AI + Agent) · Enterprise custom · Custom Agents $10 per 1,000 creditsBest for Teams that want the company brain, the AI that answers from it, and the agents that maintain it in one workspace.
Watch Full AI is gated to the $20 Business plan, and Custom Agents added usage-based credit billing on May 4, 2026 — costs are unpredictable at agent scale. Your knowledge lives in their cloud; Markdown export is lossy for databases. Agent sessions cap at ~20 minutes.
2ObsidianDynalist Inc. (Obsidian)
Free (personal, no limits) · Commercial $50/user/yr · Sync $4/mo · Publish $8/moBest for Founders and engineering-heavy teams who want knowledge as plain local files that any coding agent can read, grep, and edit — no API, no vendor.
Watch Not a team wiki out of the box: no browser editing, no granular permissions, collaboration means shared Sync vaults. No hosted product, no admin controls — governance of the company brain is entirely DIY. The app itself is not open source.
Notion vs Obsidian: side by side
Edition v2026.Q3 · verified 2026-08-06.
| Notion | Obsidian | |
|---|---|---|
| Pricing model | Per-seat + agent credits | Free + optional add-ons |
| Open source | No | No (app) · free forever |
| Data lives | Their cloud | Your disk / git |
| MCP | Hosted, official (OAuth) | Via files + official agent skills |
| AI in product | Agents + custom agents + search | None built-in (plugins) |
| Portability | Lossy export (databases) | Perfect — plain Markdown |
| Enterprise | SAML · zero-retention AI | Commercial license only |
What each side won't tell you
Notion: Full AI is gated to the $20 Business plan, and Custom Agents added usage-based credit billing on May 4, 2026 — costs are unpredictable at agent scale. Your knowledge lives in their cloud; Markdown export is lossy for databases. Agent sessions cap at ~20 minutes.
Obsidian: Not a team wiki out of the box: no browser editing, no granular permissions, collaboration means shared Sync vaults. No hosted product, no admin controls — governance of the company brain is entirely DIY. The app itself is not open source.
If it's neither
The rest of the top five: Slite (verified answers, deepest mcp) · Outline (self-hostable, mcp built-in) · Superhuman Docs (ex-Coda) (docs that compute). The complete field — 22 more tools including the graveyard — is on the element page.
This analysis is drawn from the Knowledge Wiki element dossier — the ranked top 5, the comparison matrix, and the complete field of 22 more tools live there, with every source. Data: kw.json (CC BY 4.0).
Every claim above is dated and sourced from the elems dossiers — 1,421 tools tracked across 58 categories, verified 2026-08-06, including the 276 we found dead, renamed, acquired, or sunsetting. Rankings are editorial, never paid — the charter.
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